English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/117996
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Effect of osmotic adjustment on the rheology of potato tissue. The use of discriminant analysis for interpretation

AuthorsÁlvarez, M. Dolores ; Canet, Wenceslao
KeywordsTurgor pressure
Young’s modulus
Discriminant analysis
Potato storage
Issue Date2002
CitationEuropean Food Research and Technology 214: 83- 90 (2002)
AbstractThe cell turgor pressure of potato tissue was adjusted by hyper- and hypotonic solutions of mannitol. Tubers of cv. Maris Piper were stored for 12 weeks. Rectangular beams of tissue were subjected to threepoint bend tests and Young¿s modulus was calculated. Variability in mechanical properties was less when cells were fully turgid. Dimensional parameters suggested that potato tissue is anisotropic. The results indicated the importance of water content when analysing Young¿s modulus of potato tissue from rectangular beams. Young¿s modulus proved an adequate mechanical parameter, which, along with dimensional parameters, is suitable for classifying samples of potato in different stages of turgor on the basis of the osmotic adjustment performed. There was evidence of incipient plasmolysis after osmotic adjustment to a concentration of 0.6 M mannitol as supported either by Young¿s modulus values or by discriminant analysis. Young¿s modulus measured on rectangular beams was not an adequate mechanical property to detect the effects of storage time over a 12-week period.
Identifiersdoi: 10.1007/s00217-001-0421-x
issn: 1438-2377
Appears in Collections:(IF) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
Show full item record

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.